如何使用GridLayout创建对话框？

Posted 2023-02-28

如何创建对话框，该对话框使用GridLayout，并且当用户单击此布局的项目然后单击“选择”按钮时。 GridLayout项包含一个ImageView。如何实现此对话框？

答案

GridView gridView = new GridView(this);
gridView.setAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, your_list));
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() 
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) 
                // do something here
            
 );
 AlertDialog.Builder builder = new AlertDialog.Builder(this);
 builder.setView(gridView);
 builder.setTitle("ALERT BOX WITH GRID");
 builder.show();

尝试一下，这基于单列数据网格..

[如果您需要图像，请按照以下步骤操作，https://android-developers.googleblog.com/2012/05/using-dialogfragments.html

另一答案

1-制作所需的自定义布局

2-使myDialog类扩展DialogFragment并使它膨胀到您制作的布局中

在片段3中添加所需的功能

但是我使用gridview，gridlayout比较简单，但是我建议使用gridview

这里是Dialog类

public class myDialog extends DialogFragment implements dis_listener 
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) 
    View view = inflater.inflate(R.layout.my_dialog_layout,container,false);
    GridView gv = view.findViewById(R.id.dialog_grid);

    grid_adapt adapt = new grid_adapt(getActivity(),this);
    gv.setAdapter(adapt);
    return view;




@Override
public void listen() 
    this.dismiss();

grid_adapt：-

public class grid_adapt extends BaseAdapter 
private Context cxt;
//pass the data you want
//private ArrayList<Integers> imgs
private dis_listener img_dismiss;
grid_adapt(Context context,dis_listener dismisser)
    this.cxt = context;
    this.img_dismiss = dismisser;

@Override
public int getCount() 
    //return the data length
    //return imgs.length
    return 3;



@Override
public Object getItem(int position) 
    //return imgs.get(position);
    return position;


@Override
public long getItemId(int position) 
    return position;


@Override
public View getView(int position, View convertView, ViewGroup parent) 
    viewHolder vh;
    if(convertView == null) 
        convertView= LayoutInflater.from(cxt).inflate(R.layout.grid_item, parent, false);
        vh = new viewHolder(convertView);
        convertView.setTag(vh);

    else
        vh = (viewHolder) convertView.getTag();
    
    vh.button.setOnClickListener(new View.OnClickListener() 
        @Override
        public void onClick(View v) 
            Toast.makeText(cxt,"Open",Toast.LENGTH_LONG).show();
        
    );
     vh.img.setOnClickListener(new View.OnClickListener() 
        @Override
        public void onClick(View v) 
            img_dismiss.listen();
        
    );
    return convertView;

static class viewHolder
    private Button button;
    private ImageView img;
    viewHolder(View view)
        button = view.findViewById(R.id.dialog_item_button);
        img = view.findViewById(R.id.img);
    

该接口只有一个叫listen的方法

结果：